Fuel vaporizer



May 23, 1944. I GQODLASS 2,349,716

FUEL VAPORIZER Filed May 4, 1940 lave/Nor R. Good/aw;

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Patented May 23, 1944 UNITED STATES PATENT OFFICE 1 Claim.

My invention relates to improvements in fuel Vaporizers for installation between the outlet of a conventional downdraft carburetor and an intake manifold, an object of the invention being to heat carburetted air by means of a radiator communicating with the hot water circulation system of an associated engine.

A further object of my invention is to provide a device of the character herewithin described which is of simplified construction, inexpensive to manufacture, easy to install and which cannot easily become out of order.

With the above more important objects in view and such other minor objects as may appear as the specification proceeds, my invention consists essentially in the arrangement and construction of parts all as hereinafter more particularly described, reference being had to the accompanying drawing, in which:

Figure 1 is a section on the line I-| of Figure 2.

Figure 2 is a longitudinal mid-sectional elevation of my fuel vaporizer.

In the drawing like characters of reference indicate corresponding parts in the different figures.

My fuel vaporizer comprises essentially the diamond shaped casing A, and the radiating compartment B therewithin The casing A is comprised of a centrally apertured top plate I, the aperture therein being designated 2, a centrally apertured under plate 3, the aperture therein being designated 4 and a surrounding wall 5.

The radiating compartment B is positioned centrally within the casing A and parallel with the top and under plates l and 3, being spaced therefrom to provide topside and underside fuel chambers 6 and 6'. The radiating compartment is comprised of a top plate 1, a centrally apertured under plate 8, the aperture therein being designated by the numeral 9, and surrounded by an annular wall II], which extends up to the top plate I to provide a mixing chamber for heated carburetted air and any additional charge of air which may be introduced therein by means not part of the present invention.

A plurality of short vertical open-ended tubes H extend transversely through my radiating compartment, communicating at the ends thereof by means of hot water rather than by exhaust gases, the temperature of which I have found to vary considerably according to such things as the varying loads placed upon an associated ensine and the like.

Pairs of spacers l3 ar provided to assist in stabilizing my radiating compartment within the casing A and passages it are provided to receive the bolts It, by means of which my fuel vaporizer is attached on one side to the outlet It of a conventional downdraft carburetor, and upon the other to an engine manifold 11.

It will be noted than an auxiliary supply ofv air may be admitted into the chamber 6' through the pipe 23 located centrally of the aperture 9, this pipe being integral with the pipe 22 which communicates With the atmosphere.

From the foregoing description the operation of my fuel vaporizer will be apparent and it will be seen that carburetted air drawn downwardly through the outlet of an associated carburetor first impinges on the center portion 29 of the radiating compartment top plate I and then disperses to be drawn downwardly through the tubes ll into the underside chamber 6', where it converges prior to being drawn into the manifold.

Since various modifications can be made in my invention as hereinabove described and as illustrated in the accompanying drawings, and many apparently widely difierent embodiments of same made within the scope of the claim without departing from such spirit and scope, it is intended that all matter contained in the accompanying specification and drawing shall be interpreted as illustrative only and not in a limiting sense and I desire only such limitations placed thereon as are specifically expressed in the accompanying claim.

What I claim as my invention is:

A fuel vaporizer comprising in combination a casing, said casing embodying an apertured top plate, an apertured under plate and a surrounding wall, a radiating compartment of shallow section positioned within said casing, and having means for connection with an adjacent hot water system, said radiating compartment embodying a top plate and an under plate provided with a central aperture, an annular Wall surrounding said central aperture and extending between said top plate and said under plate, said radiating compartment being spaced from the top and under plates of said casing and extending parallel therewith to provide topside and underside chambers. and a plurality of open-ended tubes extending transversely through said radiating compartment and projecting upon either side thereof into said top side and underside chambers, said tubes communicating with said chambers at the respective ends thereof.

ROBERT GOODLASS. 

